Breathing pumpTechnical Field
The invention belongs to the technical field of pumps, in particular to the technical field of positive displacement pumps, and particularly relates to a respiratory pump.
Background
At present, a general pump body mainly adopts structures such as a piston type, a vane type and a plunger type, and the structures generally need to be externally connected with a power source, so that power devices such as a transmission mechanism exist, and the energy loss and leakage problems can be caused by the existence of the power devices such as the transmission mechanism, so that the production efficiency is reduced, and the efficiency of the pump is also greatly reduced.
Disclosure of Invention
In order to solve the technical problems, the invention designs the breathing pump which is not only leak-free, but also does not need an external power device, and has high production efficiency.
In order to solve the technical problems, the invention adopts the following scheme:
the respiratory pump comprises a left end cover, a right end cover and a pump body, wherein the left end cover and the right end cover are in sealing connection with the pump body, a fixed piston connected with a constant-voltage direct-current power supply is arranged at one end in the pump body, a movable piston connected with an alternating-voltage power supply is arranged at the other end of the pump body, the fixed piston generates a stable magnetic field, and the movable piston generates an alternating magnetic field; under the action of magnetic force, the movable piston performs left-right telescopic movement to form positive-negative alternating pressure, so as to achieve the purpose of pumping oil.
Further, one end of the movable piston is connected with a telescopic film, and the telescopic film is fixed with the pump body through an excessive end cover; the pump body and the telescopic membrane form an oil cavity with a variable volume.
Further, the telescopic membrane is connected with the movable piston through a connecting piece.
Further, a groove is formed in the inner end of one of the left end cover and the right end cover, which is close to the end cover of the movable piston, so that a certain distance is reserved for telescopic movement of the movable piston.
Further, one or more chambers are distributed in the pump body, and each chamber is internally provided with a fixed piston and a movable piston; an oil inlet is formed in one end outer side wall plate of each cavity, and an oil outlet is formed in the other end outer side wall plate.
Furthermore, the oil inlet and the oil outlet are both provided with one-way valves.
Further, a corresponding sealing oil duct and a corresponding total oil inlet are formed in the outer surface of one end of the pump body, a corresponding sealing oil duct and a corresponding total oil outlet are formed in the outer surface of the other end of the pump body, and the total oil inlet and the total oil outlet are respectively communicated with the oil inlet and the oil outlet of each cavity through the corresponding sealing oil duct.
Further, a sliding rail structure is arranged on the outer side wall plate of the cavity, sliding block structures are correspondingly arranged on the fixed piston and the movable piston, and the sliding rail structure and the corresponding sliding block structures are matched to work.
Further, when a plurality of chambers are provided, each chamber is composed of an outer side wall plate, an inner side wall plate and two side partition plates; slide rail structures are arranged on the outer side wall plate and the inner side wall plate of the cavity, slide block structures are correspondingly arranged on the fixed piston and the movable piston, and the slide rail structures are matched with the corresponding slide block structures.
Further, an electrode is connected to the inner wall of the sliding rail structure of the outer side wall plate, and the electrode is electrically connected with a corresponding wiring terminal on the outer surface of the pump body; the terminals are provided with at least two pairs, wherein one pair corresponds to a constant voltage direct current power supply, and the other pair or pairs correspond to corresponding alternating voltage power supplies.
Further, the fixed piston comprises a fixed piston body, the movable piston comprises a movable piston body, exciting coils are wound on the fixed piston body and the movable piston body, and the exciting coils are electrically connected with corresponding wiring terminals on the outer surface of the pump body through corresponding fixed piston electrodes or movable piston electrodes and corresponding inner wall electrodes of the sliding rail structures.
Further, the fixed piston electrode is arranged on the sliding block structure outside the fixed piston body, and the movable piston electrode is arranged on the sliding block structure outside the movable piston body.
Further, the sliding rail structure is a T-shaped sliding groove structure; the sliding block structure is a T-shaped sliding block structure; the electrode of slide rail structure sets up the both shoulders downside at "T" type spout, fixed piston electrode or moving piston electrode set up the both shoulders downside at corresponding "T" type slider.
Further, the pump body is a multi-chamber cylindrical pump body, and the chambers are circumferentially arranged and axially extend.
Further, when the chambers are multiple, the chambers are divided into two groups or three groups, so that a relay type pressure suction oil path is formed.
Further, sealing rings are arranged between the pump body and the left and right end covers respectively.
The respiratory pump has the following beneficial effects:
(1) The invention does not need to be connected with power devices such as a transmission mechanism and the like, has high production efficiency and does not leak.
(2) When the external movable piston terminal is connected with alternating voltage, the movable piston in the pump body generates alternating magnetic field, the external fixed piston connecting terminal is connected with constant voltage direct current power supply, and the fixed piston generates stable magnetic field. Under the action of magnetic force, the movable piston pushes the telescopic membrane or pulls back the telescopic membrane, so that the volume of the inner cavity of the pump body is changed, positive and negative alternating pressure is formed, the purpose of absorbing oil is achieved, and a new technology of the breathing pump is opened up.
(3) According to the invention, each cavity is independent, so that the plurality of cavities can be divided into two or three groups, and the two or three groups of movable piston groups alternately reciprocate to form a relay type pressure suction oil path, and a continuous pressure suction oil path is formed through the total oil inlet and the oil suction port, so that the production efficiency is further improved.
Drawings
Fig. 1: an exploded view of a respiratory pump in one embodiment of the present invention;
fig. 2: in one embodiment of the invention, a front view and a partial enlarged view of a pump body;
fig. 3: a left side view of the pump body in one embodiment of the invention;
fig. 4: FIG. 2 is a cross-sectional view A-A;
fig. 5: a schematic structural diagram of a moving piston in an embodiment of the present invention;
fig. 6: in one embodiment of the invention, the fixed piston is structurally schematic.
Reference numerals illustrate:
1-a left end cover; 2-a left sealing ring; 3-fixing the piston; 31-fixed piston electrode; 4-a one-way valve; 5-a pump body; 6-a fixed piston connecting terminal; 7-a movable piston connecting terminal; 8-moving a piston; 81—a moving piston electrode; 9-a telescoping membrane; 10-a connecting piece; 11-transition end cap; 12-a right sealing ring; 13-a right end cover; 14-a total oil inlet; 15-total oil outlet; 16-an oil inlet; 17-an oil outlet; 18-an electrode; 19-seal oil duct.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
fig. 1 to 6 show one embodiment of the respiratory pump of the present invention. Fig. 1 is an exploded view of the respiratory pump in the present embodiment.
As shown in fig. 1, the respiratory pump in the present embodiment includes a left end cover 1, a pump body 5, and a right end cover 13, where the left end cover 1 and the right end cover 13 are respectively connected with the pump body 5 in a sealing manner; one end in the pump body 5 is provided with a fixed piston 3 connected with a constant voltage direct current power supply, and the other end is provided with a movable piston 8 connected with an alternating voltage power supply; the fixed piston 3 generates a stable magnetic field, and the movable piston 8 generates an alternating magnetic field; under the action of magnetic force, the movable piston 8 performs left-right telescopic movement to form positive and negative alternating pressure, so as to achieve the purpose of pumping oil by oil suction.
Preferably, one end of the moving piston 8 is provided with a telescopic membrane 9, the telescopic membrane 9 is connected with the moving piston 8 through a connecting piece 10, and the telescopic membrane 9 is fixedly connected with the pump body 5 through an excessive end cover 11, as shown in fig. 1. The pump body 5 and the telescopic membrane 9 form an oil chamber with a variable volume.
Preferably, the end covers of the left end cover and the right end cover, which are close to the movable piston 8, are provided with a groove at the inner ends, and a certain distance is reserved for the extension and retraction of the movable piston 8. In this embodiment, an annular groove is provided at the inner end of the right end cap 13, and the annular groove has a certain depth to keep a certain distance for the extension and retraction of the moving piston 8, as shown in fig. 1.
As shown in fig. 1, sealing rings are further arranged between the pump body 5 and the left and right end covers respectively, so that the sealing effect is further enhanced. In this embodiment, a left seal ring 2 is disposed between the left end cover 1 and the pump body 5, and a right seal ring 12 is disposed between the pump body 5 and the right end cover 13.
Preferably, one or more chambers are distributed in the pump body 5, and each chamber is internally provided with a fixed piston 3 and a movable piston 8; an oil inlet 16 is provided in one outer sidewall of each chamber and an oil outlet 17 is provided in the other outer sidewall, as shown in fig. 1, 2 and 4. Fig. 2 is a front view and a partial enlarged view of the pump body in the present embodiment, and fig. 4 is a sectional view A-A of fig. 2. In this embodiment, six chambers are distributed in the pump body 5.
Preferably, the one-way valve 4 is arranged at each of the oil inlet 16 and the oil outlet 17, as shown in fig. 1.
Preferably, the outer surfaces of the two ends of the pump body 5 are respectively provided with a pump hub, the pump hub at one end of the pump body 5 is provided with a corresponding sealing oil duct 19 and a corresponding total oil inlet 14, the pump hub at the other end is provided with a corresponding sealing oil duct 19 and a corresponding total oil outlet 15, and the total oil inlet 14 and the total oil outlet 15 are correspondingly communicated with the oil inlets 16 and the oil outlets 17 of the chambers through the corresponding sealing oil duct 19, as shown in fig. 3 and 4, and the pump body in the embodiment of fig. 3 is an appearance diagram.
Preferably, the outer side wall plate of the cavity is provided with a sliding rail structure, and the fixed piston and the movable piston are respectively provided with a sliding block structure correspondingly, and the sliding rail structure and the corresponding sliding block structure work in a matching way.
Preferably, when there are a plurality of chambers, each chamber is composed of an outer side wall plate, an inner side wall plate and two side partition plates. Slide rail structures are arranged on the outer side wall plate and the inner side wall plate of the cavity, slide block structures are correspondingly arranged on the fixed piston 3 and the movable piston 8, and the slide rail structures and the corresponding slide block structures work in a matched mode, as shown in fig. 1. In this embodiment, two slide rail structures are disposed on the outer side wall plate and the inner side wall plate of each cavity, and two rows of slide block structures are disposed on the outer side surface and the inner side marking surface of the fixed piston 3 and the movable piston 8.
Preferably, the inner wall of the sliding rail structure of the outer side wall plate is connected with an electrode 18, and the electrode is electrically connected with a corresponding wiring terminal on the outer surface of the pump body 5; the number of the terminals is at least two, one pair is that the fixed piston connecting terminal 6 is correspondingly connected with a constant voltage direct current power supply, and the other pair or pairs are that the movable piston connecting terminal 7 is correspondingly connected with an alternating voltage power supply, as shown in fig. 1 and 2.
Preferably, the fixed piston 3 and the movable piston 8 comprise a fixed piston body and a movable piston body, and the fixed piston body and the movable piston body are both wound with exciting coils, as shown in fig. 5 and 6, fig. 5 is a schematic structural diagram of the movable piston in the present embodiment, and fig. 6 is a schematic structural diagram of the fixed piston in the present embodiment. The exciting coil is electrically connected with the corresponding wiring terminal on the outer surface of the pump body 5 through the corresponding fixed piston electrode 31 or moving piston electrode 81 and the corresponding upper electrode 18 on the inner wall of the sliding rail structure, as shown in fig. 1.
In this embodiment, the sliding rail structure is a "T" shaped sliding slot structure; the sliding block structure is a T-shaped sliding block structure; the electrode of slide rail structure sets up the both shoulders downside at "T" type spout, fixed piston electrode or moving piston electrode set up the both shoulders downside at corresponding "T" type slider.
Preferably, the pump body 5 is a multi-chamber cylindrical pump body, the chambers being arranged circumferentially and axially.
Preferably, when the chambers are multiple, the chambers are divided into two groups or three groups to form a relay type pressure suction oil path. In the embodiment, six chambers are arranged, three chambers which are distributed at intervals are taken as a group and divided into two groups, and the two groups of movable pistons alternately reciprocate to form a relay type pressure suction oil path.
In the invention, the oil cavity with variable volume is formed by the pump body and the telescopic film, when the external movable piston terminal is connected with alternating voltage, the movable piston in the pump body generates alternating magnetic field, the external fixed piston connecting terminal is connected with constant voltage direct current power supply, and the fixed piston generates stable magnetic field. Under the action of magnetic force, the movable piston pushes the telescopic film or pulls back the telescopic film, so that the volume of the inner cavity of the pump body is changed, positive and negative alternating pressure is formed, and the purpose of absorbing oil is achieved. Because each cavity is independent, three alternate moving pistons can be arranged as a group to form a relay type pressure suction oil way, and a continuous pressure suction oil way is formed through the total oil inlet and the oil suction port, so that the production efficiency is improved.
The invention does not need to be connected with power devices such as a transmission mechanism and the like, has high production efficiency and does not leak.
The invention has been described above by way of example with reference to the accompanying drawings, it is clear that the implementation of the invention is not limited to the above-described manner, but it is within the scope of the invention to apply the inventive concept and technical solution to other situations as long as various improvements made by the inventive concept and technical solution are adopted or without any improvement.